diff --git a/HISTORY.rst b/HISTORY.rst
index ae20dadf0b..c941ba7252 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -6,7 +6,7 @@ Release Notes
 PlatformIO 4.0
 --------------
 
-4.0.1 (2019-??-??)
+4.0.1 (2019-08-22)
 ~~~~~~~~~~~~~~~~~~
 
 * Print `debug tool <http://docs.platformio.org/page/plus/debugging.html#tools-debug-probes>`__ name for the active debugging session
diff --git a/platformio/__init__.py b/platformio/__init__.py
index 3ac6ef4cdc..7f7b65d0e8 100644
--- a/platformio/__init__.py
+++ b/platformio/__init__.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-VERSION = (4, 0, "1rc2")
+VERSION = (4, 0, 1)
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"